Sergey Kamenev

Sergey Kamenev (4 April 1881-25 August 1936) was the Chief-of-Staff of the Red Army from March to November 1925, succeeding Mikhail Frunze and preceding Mikhail Tukhachevsky. He fought in World War I, the Russian Civil War, and Polish-Soviet War.

Biography
Sergey Kamenev was born on 4 April 1881 in Kiev, Kiev Governorate, in the Russian Empire (present-day Ukraine). Kamenev commanded a regiment of the Imperial Russian Army during World War I, but later joined the Red Army of the Bolsheviks and was the commander of the Eastern Front from 1918 to 1919 during the Russian Civil War. From 1919 to 1924 he was Chief Commander of the Armed Force of the Republic, during which time he fought in the Battle of Warsaw during the Polish-Soviet War. From March to November 1925, he briefly served as Chief-of-Staff of the Soviet Union's Red Army, and he died in 1936.